• #331 Set the default reveal.js GEM to 2.0.0 thus enabling the use of Reveal.js plugin support.
• #317 Reveal.js Asciidoctor plugin now correctly sets highlightsjs as default source highlighter.
• #328 Only set the gradle-project-group@ attribute if project.group is defined for the build.
• #329 Only set the revnumber@ attribute if project.version is defined for the build.
• #292 Add gradle-relative-srcdir attribute that contains the traversal path from a source document's parent folder to the root source folder.
• #324 Do not add empty GEM paths when running with multiple backends using JAVA_EXEC as the process model.
• #326 Add example of using Pygments source highlighter.
• If the Gradle version is Gradle 4.9+ all Asciidoctor tasks will be lazy-created thus allowing build script authros to take advantage of the task lazy-creation API should they wish. On older versions of Gradle the tasks will be created as per usual.